[USA1fan]

The OLM most likely is normal (it was around that for my 08 LTZ). Most people can go far longer than the 3000 mile interval, meaning, if it makes you feel better doing oil changes that often, go ahead, but be aware that it's most likely money down the drain.

For the TPMS, have you tried more than one guage to verify that yours isn't out of calibration? If so, definitely an issue with the car.

Good luck getting your car back up to snuff.

 

[USA1fan]

Well, I “learned” a couple of things today.

From the mouth of the circus advisor: “Your tires were underinflated. They were set to 32 psi. That’s not enough pressure for a 17” tire. The sidewall states max pressure to be 40 psi…you have to inflate them to at least 35 psi before the TPMS warning shuts off.”

When I pointed out the manufacturers tire placard states the tires should be inflated to 30 psi COLD, he said: “Well, I don’t understand why they put that low of a number on the sticker. You’ll get better tire wear and gas mileage if you run them higher. That sticker doesn’t make any sense to me.”

When I started the car, the TPMS warning was off but, the pressure readings on the DIC indicated that the pressures were now 27 to 28 psi…not the 35 psi that he reported the technician had set. His response: “Those sensors aren’t all that accurate. You’ll have to keep the tires up to keep the warning light off.”

The repair order stated that the “Express Up’ feature for the LF door glass was NPF…No Problem Found. I guess that means the technician determined that my car is not equipped with the express feature that worked for the first 5 months of ownership???

I suppose I’ll be a bit less tolerant when I take the car back tomorrow. I didn’t feel like arguing…Never argue with an idiot. They bring you down to their level and beat you with experience.

No kidding. It sounds like you need to try a different dealership.